378838146 has 8 divisors (see below), whose sum is σ = 757676304. Its totient is φ = 126279380.

The previous prime is 378838139. The next prime is 378838151. The reversal of 378838146 is 641838873.

It is a sphenic number, since it is the product of 3 distinct primes.

378838146 is an admirable number.

It is a junction number, because it is equal to n+sod(n) for n = 378838095 and 378838104.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31569840 + ... + 31569851.

It is an arithmetic number, because the mean of its divisors is an integer number (94709538).

Almost surely, 2^378838146 is an apocalyptic number.

378838146 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

378838146 is a wasteful number, since it uses less digits than its factorization.

378838146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63139696.

The product of its digits is 774144, while the sum is 48.

The square root of 378838146 is about 19463.7649492589. The cubic root of 378838146 is about 723.5766898089.

The spelling of 378838146 in words is "three hundred seventy-eight million, eight hundred thirty-eight thousand, one hundred forty-six".